Hi everyone! So this has kinda been sitting in my brain for a while, so I decided to put it up.

So please enjoy! ONWARD!

Disclaimer: I own nothing.

It was a normal day at the cave, just like every other day. Megan was baking, Conner was watching a static-covered TV screen, Kaldur was reading, and Wally and Artemis were, of course, at each other's throats. Robin was off in Gotham doing the "Dynamic Duo thing", as Wally put it, with Batman. The team hadn't had a mission in over a week and they were all a little anxious.

"What's wrong, Baywatch? Scared?"

"You wish! Why don't you do it if you're so high and mighty, Replacement?"

"Don't call me that!"

"Replacement, Replacement, Replacement!"

Of course the challenge at the moment was to tune the arguing pair out and to stay out of their way. Seeing as no one had been hit yet and the team didn't even know what the argument was about, they were doing a pretty good job.

Recognized: Batman 02 Robin B01 Nemo X00

Everyone stopped as the computer announce the arrival of the Bat and the Bird, but they puzzled over the third person.

"Team," Batman's voice came over the intercom, "Report to the briefing room immediately."

"Finally! Some action!" Wally exclaimed as he bolted down the hall. Artemis scowled but followed, Conner huffing in agreement with the speedster as the team got up to follow.

What they found waiting for them was not at all what they expected.

Batman stood, face blank as the team filed in. Robin stood with him, dressed in his civvies, not for a mission. Next to him, stood a girl. She looked to be in her late teens; she was tall and slender, standing at least six inches taller than Robin. She wore a pair of skinny jeans that hugged her slim thighs and a pair of boots. A tight, peach-pink top hugged her torso, the sleeves were loose and flowing, cuffed three quarters of the way down her arms. Her skin was extremely pale, almost like she had never seen the sun, but it didn't appear unhealthy. Her long, chocolate colored hair came to her elbows and was tied back in a loose ponytail at the base of her neck. Her eyes were a bright hazel, but they were clouded, unfocused. They flitted around the cave like an excited child's, looking but not really seeing. When her gaze skimmed over the team it was almost as if she was looking through them. And as much as that unnerved them, the thing that really threw them off was the fact that she was holding Robin's hand.

And that he was letting her!

Their fingers were intertwined between them, Robin's thumb occasionally brushing the back of her hand. The simple action seemed to pull the girl back from whatever daze she was in and she would glance at him. He'd smile at her wordlessly and she would calm, if only for a few seconds before the process was repeated again.

Needless to say the team was confused.

Wally was the first to find his voice. "Soooooo, is this a new teammate?"

"No," Batman said. At his voice, the girl's head whipped around to face him, though she still appeared to be looking through him. "This is Nemo. She alternates between living in the Watchtower and Superman's Fortress of Solitude." Conner frowned at the mention of his genetic donor and was a little unnerved to find the girl's gaze zero in on him. "Due to certain…circumstances, she will be staying here for a few days." Was it just them, or did Batman sound…unhappy about this?

"If I may ask, what circumstances, sir?" Aqualad inquired, his voice calm and polite.

"The League is handling it." Batman replied shortly and Aqualad nodded, knowing that was all the answer he was going to get. He then turned to Nemo and spoke directly to her. "You are free to wander the cave, but do not leave it. Red Tornado will be arriving with your things shortly." Nemo's eyes cleared slightly as she looked at Batman, focusing in on him and only him. "If you need anything at all, find Robin. He will be staying with you."

Nemo glanced at Robin, who gave her an award winning smile, before speaking. "The Bat flies away and the Bird shall stay?" Her voice was soft and sweet like a child's.

Batman glanced down at her, then nodded. Nemo stared at him for a long moment before she suddenly smiled and wrapped her arms around his waist. If Batman was surprised, he didn't show it. The team, however, stared openly while Robin simply smirked knowingly. Batman did not hug her back, but his cape did slide over his shoulders, briefly covering her before she pulled back. He looked over the team once more before leaving, the computer announcing his departure. Nemo just stared after him.

Robin tuned and smirked at his teammates. "What, no hello?"

"Dude!" Wally cried, "What the heck just happened?"

Conner frowned. "We babysit now?"

"Technically, Nemo is the oldest one here; she's eighteen." Robin stated matter-of-factly.

"Riiiiiiiiiight," Wally said, rolling his eyes, "So is she like, your girlfriend or something? Don't think we didn't see you two holding hands."

Artemis shoved him and said, "She can hear you, Kid Dork." The same time that Robin denied a relationship with the girl.

Nemo turned back to face them and walked over, coming to stand by Robin's side. She glanced at him before looking at the team and smiling. "The sky is green, the grass is blue, the little Robin bird wants me to meet all of you."

Robin smirked at his teammate's confused expressions. "You guys going to introduce yourself or do I have to do it for you?"

That seemed to snap them out of it.

"Hello Megan!" exclaimed the green girl, "My name is M'gann M'orzz. But you can call me Megan." The Martian girl smiled when Nemo held out a hand to shake. Megan did so saying, "It's nice to meet you." Nemo smiled.

"I am Kaldur 'Ahm, but you may call me Kaldur."

"Conner Kent."

"I'm Artemis. That's Kid Dork." Artemis said, jerking a thumb in Wally's direction.

"That's Kid Flash. But you can call me Wally, beautiful." Artemis rolled her eyes. "So is Nemo an alias? What's your name?"

She blinked, looking slightly confused. "Nemo is Nameless."

Artemis raised an eyebrow. "You don't have a name?"

"Nemo is Nameless." The statement was repeated firmly.

Robin sighed, placing a hand on Nemo's shoulder, causing the girl to turn to him, confusion clear on her face. "Her civilian name is Rachel. No last name, just Rachel."

Conner glared at the girl. "You said you didn't have a name."

Rachel shrugged frowning, as if her own name was foreign to her. "Nemo is Nameless, Nameless is Nemo. Rachel is Nemo, so Rachel is Nameless."

Robin took her hand. "Come on, Rachel, I'll show you around." Rachel smiled and let herself be pulled along by the boy, waving at the team as they left. As they turned the corner, the team heard Rachel start singing nursery rhymes.

"She seems…interesting," Megan said at last, breaking the silence. "Is that normal human behavior?"

"No." Wally and Artemis said in unison, then glared at each other.

"I believe there is much about our new friend that we are not aware of." Kaldur said. Conner nodded in agreement.

"Well," Artemis said, "there's only one way to find out."

*x*x*

Two days passed and the team had yet to learn anything meaningful about their guest. For the most part, she wandered aimlessly and silently, watching everything the team did with rapt attention. They found that, despite what Robin said about her age, she was incredibly child-like. She always spoke in riddles, never flat out saying anything, nor did she refer to anyone by name. Robin seemed to be the only one who had no problem understanding her, as a result, Rachel rarely spoke if he was not present.

Much to the team's surprise, she was permitted to watch them train, but was not required to participate. When Black Canary arrived, she greeted the girl with a smile and a hug before turning in the team.

They noticed that she never seemed to be all there. Her eyes were almost always unfocused, and she seemed to look through everything she saw. Oddly enough, she was aware of everything around her. She was the only one who wouldn't jump when Robin popped out of no where or when Wally suddenly zipped through the room. She seemed to know where everyone was at all times and had no trouble recalling anything, even things she wasn't present for. When asked, Robin merely shrugged and said Rachel had always been this way.

Truly, the only thing the team had learned, was that Rachel was not a normal human.

The question was, what made her that way?

So? Was it horrible? Was it awesome? Was it horribly awesome? Let me know!